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Finding the Fourth Proportional to 240,371.20, 360,081.60 and 210,822.40

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Solution

The fourth proportional to 240,371.20, 360,081.60 and 210,822.40 is: 315,816.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,371.20 : 360,081.60 = 210,822.40 : x
  2. Step 2: Convert to fraction form
    240,371.20/360,081.60 = 210,822.40/x
  3. Step 3: Cross multiply
    240,371.20x = 360,081.60 × 210,822.40
  4. Step 4: Simplify right side
    240,371.20x = 75,913,267,107.84
  5. Step 5: Solve for x
    x = 75,913,267,107.84/240,371.20
  6. Step 6: Final answer
    x = 315,816.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.